Mowing machine guard



July 5, M BOYER MOWING MACHINE GUARD Filed Deo. 8, 1945 r- UU Patented July 5, 1949 UNITED STATES PATENT OFFICE MOWING MACHINE GUARD Martin Boyer, Lowry, Minn., assignor of onefourth to Birth A. McIver, Lowry, Minn.

Application December 8, 1945, Serial No. 633,736

1 Claim.

The invention as described herein, and illustrated in the accompanying drawings, consists of a rivetless ledger plate, an object of which is to provide means whereby the plate may be secured to the guard finger without the use of rivets.

Another object of the invention is to provide a ledger plate and a spring pull back therefor.

A further object of this invention is to provide a guard in the rear part of which is provided a rivet with a protruding head, an end f a pull spring attached to the head, and a ledger plate to the outer end of which is removably attached the other end of the spring whereby the plate is detachably held in place.

Other features and advantages will become more readily apparent from the following description and the accompanying illustrative drawings in which:

Figure 1 is a plan view of my device,

Figure 2 is a sectional view on line 2--2 of Figure 1, and

Figure 3 is a detail plan view of a ledger plate.

While one embodiment of my invention is illustrated in the above referred to drawings, it is to be understood that they are merely for the purpose of illustration and that various changes in construction may be resorted to in the course of manufacture in order that the invention may be utilized to the best advantage according to circumstances which may arise, without in any way departing from the spirit and intention yof my device, which is to be limited only in accordance with the appended claim. And while I have stated the primary eld of utility of my invention it remains obvious that it may be employed in any other capacity wherein it may be found applicable.

In the accompanying drawings, and in the following specication, the same reference characters are used to designate the same parts and elements throughout and in which IIJ, refers to the invention and I I, indicates a guard for mowing machines and the like in the rear or heel portion I2, of which is provided a vertical bore I3, the lower end I4, of which is enlarged and flared to provide for the like shaped lower end I5, of a rivet I6, the head I1, of which projects above the surface of the wall I8, for engagement with the eye I9, on the terminal end 20, of a pull spring 2l, which terminates in an elongated shank 22, the terminal of which is returned to form a hook 23, engageable in the notch 24, of the outer end 25, of a ledger plate 26, the rear end 21, is provided with inwardly inclined ends 28 and 29. to t the recess 30, on

the said guard member I2. The extreme inner end 3|, of the plate 26, is provided with a cut out 32, and against which and within which said recess 30, the ledger plate is securely held through the action of spring 2|. The outer end 25, of the plate 26, and the hook 23, seat within the recess 34, in the point end 35, of the guard I2. To remove the ledger plate it becomes necessary only to project the point of a nail into said cut out 32, and prise the rear end of the plate up above the surface of the guard I2 whereupon the action of the spring 2|, will cause the plate to leap from the guard.

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with the drawings. Therefore, a more lengthy description is regarded as unnecessary.

Changes in shape, size and rearrangement of details and parts such as come within the purview of the invention claimed may be resorted to, in actual practice, if desired.

Having now described the invention that which is claimed to be new and desired to be procured by Letters Patent is:

In a mowing machine, a guard finger, a ledger plate seat on said iinger having rearwardly converging side walls, a ledger plate on said seat having converging side walls engaging the side walls of the seat, the seat having a recess opening through its top face between the convergent ends oi the side walls, the ledger plate having a notch opening through its end between the convergent ends of the side walls thereof through which an instrument may be introduced into the recess and beneath the ledger plate to lift the rear end of the ledger plate ofi of the seat, a retractile coil spring anchored at one end to the nger beneath the ledger plate and a hook on the opposite end of the spring for engaging the end of the ledger plate remote from the seat yieldingly to hold the convergent side walls of the ledger plate against the convergent side walls of the seat.

MARTIN BOYER.

REFERENCES CITED The following referenlces are of record in the file of this patent:

UNITED STATES PATENTS Borkhuis, Jr. Apr. 22, 193() 

